The eternal question that dedicated mongers ask every day.
We research so carefully, read the details, find the little errors in the profile, ask (or try to) all the right questions before we commit. But for all that it's still a punt - "To 'have a punt' means to bet prospectively on something that probably won't win."
My recommendation is trust your gut, go for it if it feels right and don't hesitate to walk away any time up to handing over the cash, by which time your primitive urges will be making the rules anyways.
Most important, give us all feedback, then at least if it wasn't as great as you wanted the rst of us will heve more to invest in good prospects.
Good luck